Comparisons
Factual comparisons with the tools and habits teams already have. Where the others are stronger, we say so; often the answer is to use both.
Percy and Chromatic compare snapshots with a baseline. Kaloko checks new work against the task in every language and records who signed it off.
Kaloko vs manual QAManual QA spends most of its time clicking through screens. With Kaloko the agent walks and captures, and the tester decides what is done.
Kaloko vs Loom videos and screenshotsA video or a folder of screenshots shows work once. Kaloko keeps every screen as a checked record that people can comment on and approve.
Which question each tool answers
- Visual regression: Chromatic, Percy, Argos
What changed in pixels since the last approved baseline. Good for components and for catching changes nobody intended; it cannot tell whether a new screen does what the task asked.
- Test suites and AI QA agents: Momentic, QA Wolf
Whether the flows that worked yesterday still work. They guard engineers against regressions; they do not give a product owner a screen-by-screen record to approve.
- Feedback widgets: Vercel comments, Marker.io, BugHerd
What a reviewer noticed while clicking through a preview. The reviewer still has to find every screen, language and device on their own.
- Walkthroughs from the coding agent
What the agent says it did, as screenshots or a recording in the chat. Useful evidence that disappears with the conversation.
- Kaloko
Whether this change does what the task asked, on every screen, in every language and screen size, and who signed it off: a shared record with compare, baselines and history, whichever agent wrote the code.
Most teams keep the tool they have and add Kaloko for acceptance: the pixel tool guards components in CI, Kaloko shows the people who decide what the change looks like and records their decision.
Where Kaloko trails
- No real-device or cross-browser cloud; BrowserStack, Percy and Applitools have one.
- No SOC 2 or similar attestation yet, which larger clients may ask for.
- The seo and a11y packs check the pages an agent walked; a dedicated crawler or governance suite goes deeper across a whole site.
Facts about other products as of 30 September 2026, from their public pages; they change often. Tell us if something is out of date: support@sinfin.cz.